Compression molding device for plastic box production

Abstract

The invention discloses a compression molding device for plastic box production, and relates to the technical field of plastic box production. The post-treatment is carried out on the formed plastic box; the device specifically comprises a base, a vertical plate and a supporting plate are fixed to the top of the base through bolts, a mold pressing part for conducting mold pressing forming on a plastic box is installed between the vertical plate and the supporting plate, a supporting ring is fixed to the inner wall of one side of the supporting plate through a support, and a feeding hole and a discharging hole are formed in the top and the bottom of the supporting ring correspondingly; a rotating connector is fixedly embedded into a through hole formed in the surface of the supporting plate, and one end of the rotating connector is movably connected with a rotating disc matched with the inner diameter of the supporting ring and located outside the circumference of the rotating disc. The multiple sets of containing grooves are formed in the outer wall of the circumference of the rotating disc, so that plastic boxes can be borne after being formed and demolded, meanwhile, the plastic boxes in the containing grooves can be cooled through wind power by arranging the rotating connectors and the leaking nets, and the surfaces of the plastic boxes are cleaned while the remaining temperature is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of plastic box production, in particular to a plastic box production molding device. Background Art

[0002] In the prior art, plastic boxes are currently an important part of food packaging, and their production technology and equipment are also constantly developing and improving. Traditional foam lunch boxes have been gradually eliminated due to their lack of high temperature resistance and environmental damage during the production process. They have been replaced by plastic lunch boxes. Among them, PP polypropylene has become an ideal material for meal packaging due to its good mechanical and thermal properties.

[0003] At present, there are some plastic box production compression molding devices on the market, which mainly use molds to mold plastic sheets. However, these devices still have some shortcomings in production efficiency, cooling speed, demoulding convenience and degree of automation. For example, after demoulding and unloading, the residual temperature on the surface of the plastic box is likely to cause safety hazards to operators, and due to the lack of corresponding supporting mechanisms during unloading, the plastic box falls directly from the mold, which is easy to cause damage and other defects;

[0004] After searching, the Chinese patent application number 202321854385.9 discloses a plastic box production and molding device, including a support leg, the upper surface of the support leg is fixedly connected to a chassis, the upper surface of the chassis is fixedly connected to a sound insulation cover, an injection molding device and an air drying duct, and a conveyor belt is movably connected in the wall of the upper surface of the chassis.

[0005] A plastic box production and molding device in the above patent has the following shortcomings: during the process of plastic box molding and blanking, due to the lack of a corresponding supporting mechanism, the plastic box will fall directly from a high place onto the conveyor belt. Under the action of gravity, the plastic box is easily damaged, increasing the defective rate. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings in the prior art and to propose a plastic box production molding device.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A plastic box production molding device comprises a base, a vertical plate and a support plate are fixed to the top of the base by bolts, a molding part for molding the plastic box is installed between the vertical plate and the support plate, a support ring is fixed to the inner wall of one side of the support plate by a bracket, and a feed hole and a discharge hole are respectively provided at the top and bottom of the support ring, a swivel joint is embedded and fixed in the through hole provided in the surface of the support plate, and a turntable adapted to the inner diameter of the support ring is movably connected to one end of the swivel joint, a plurality of placement grooves are provided on the circumferential outer wall of the turntable, and a leakage net is fixed on the inner surface of the turntable.

[0009] Preferably, the molding part comprises a die assembly and a punch assembly, the die assembly comprises a pipeline and a die, the die is fixed to an inner wall of one side of the support plate by bolts, and the pipeline is fixed to an outer wall of one side of the die.

[0010] Preferably, a guide rod is fixed between the vertical plate and the support plate by bolts, and a limiting plate is welded to the circumferential outer wall of the guide rod.

[0011] Preferably: the punch assembly includes a movable plate and a mounting seat, a T-bar is welded on the outer wall of one side of the movable plate, and the outer wall of the T-bar is movably connected to the mounting seat, and a spring is clamped between the outer wall of one side of the mounting seat and the inner wall of one side of the T-bar, and a punch is fixed on the inner wall of one side of the mounting seat.

[0012] Preferably: an electric telescopic rod is fixed to an outer wall on one side of the vertical plate by bolts, and a movable seat is fixed to an output end of the electric telescopic rod by a pin, and the movable seat and an outer wall on one side of the mounting seat are fixed by bolts.

[0013] Preferably: a vertical plate is fixed to the outer wall of the top of the base by bolts, and a through hole opened on the surface of the vertical plate is movably connected to a rotating column, and a sleeve rod is movably connected to one end of the rotating column, and the sleeve rod and the movable seat are fixedly connected.

[0014] Preferably, a driving arm is welded on the inner wall of one side of the movable seat, a driving head is welded on the bottom of the driving arm, and a spiral groove for use with the driving head is opened on the outer wall of the circumference of the rotating column.

[0015] On the basis of the above scheme: a driving frame is fixed to the end of the rotating column away from the sleeve rod, and a sliding rod is movably connected to the through hole opened at the top of the driving frame, and a spring 1 is clamped between the inner wall of the top of the sliding rod and the outer wall of the top of the driving frame.

[0016] Preferably, based on the above solution: a ratchet is welded on the bottom of the sliding rod.

[0017] Based on the above solution, it is further preferred that: a through hole matching the inner diameter of the punch is opened on the surface of the movable plate.

[0018] The beneficial effects of the present invention are:

[0019] 1. By opening multiple groups of placement grooves on the outer wall of the turntable, the plastic boxes can be received after they are formed and demoulded. At the same time, a rotating joint and a leakage net are provided to use wind power to cool the plastic boxes in the placement grooves, thereby reducing the residual heat and cleaning the surface of the plastic boxes.

[0020] 2. The "ratchet mechanism" formed by the ratchet and the ratchet wheel is used to indirectly drive the turntable to rotate intermittently. The turntable transports the plastic boxes during the intermittent rotation. When the plastic boxes are cooled and cleaned, they are finally discharged through the discharge hole.

[0021] 3. By providing a driving head and a spiral groove, the lateral movement of the sleeve rod can be converted into the circular motion of the rotating column. By utilizing this mechanism, the electric telescopic rod can not only drive the male mold assembly and the female mold assembly to achieve mold closing, but also drive the ratchet to rotate, so as to drive the ratchet and the turntable to rotate along the support ring to achieve the unloading of the formed plastic box.

[0022] 4. When the plastic box needs to be demoulded after being formed, the movable plate can be limited by setting a limit plate. After the movable plate is limited, the electric telescopic rod drives the mounting seat to move by the moving seat, so that the mounting seat slides relative to the T-bar, and then the plastic box and the punch are separated during the sliding of the punch relative to the moving plate, thereby realizing the demoulding of the plastic box.

[0023] 5. By setting up a pipeline, when the male mold and the female mold are closed, the molten plastic box processing material is injected into the cavity between the female mold and the male mold to realize the molding of the plastic box. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of a plastic box production molding device proposed by the present invention;

[0025] Figure 2 This is a schematic diagram of the side structure of a plastic box production molding device proposed by the present invention;

[0026] Figure 3 This is a structural schematic diagram of a molding part of a molding device for producing a plastic box proposed by the present invention;

[0027] Figure 4 A schematic diagram of the partial structure of a molding part of a molding device for producing a plastic box proposed by the present invention;

[0028] Figure 5 This is a schematic diagram of the cooling unit structure of a plastic box production molding device proposed by the present invention;

[0029] Figure 6This is a schematic diagram of the exploded structure of the cooling part of a plastic box production molding device proposed by the present invention.

[0030] In the figure: base 1, electric telescopic rod 2, vertical plate 3, guide rod 4, movable plate 5, pipeline 6, support ring 7, rotating column 8, driving arm 9, movable seat 10, support plate 11, limit plate 12, mounting seat 13, die 14, T-bar 15, spring 16, punch 17, slide bar 18, spring 19, driving head 20, feeding hole 21, sleeve rod 22, spiral groove 23, vertical plate 24, ratchet 25, ratchet wheel 26, rotary joint 27, filter screen 28, placement slot 29, turntable 30, feeding hole 31, driving frame 32. DETAILED DESCRIPTION

[0031] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0032] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] Embodiment 1:

[0034] A plastic box production molding device, such as Figures 1 to 6 As shown, it includes a base 1, a vertical plate 3 and a support plate 11 are fixed to the top of the base 1 by bolts, a molding part for molding the plastic box is installed between the vertical plate 3 and the support plate 11, a support ring 7 is fixed to the inner wall of one side of the support plate 11 by a bracket, and a feeding hole 31 and a discharge hole 21 are respectively opened at the top and bottom of the support ring 7, a through hole opened on the surface of the support plate 11 is embedded and fixed with a rotary joint 27, and one end of the rotary joint 27 is rotatably connected to a turntable 30 adapted to the inner diameter of the support ring 7, and a plurality of groups of placement grooves 29 are opened on the circumferential outer wall of the turntable 30, and a leakage net 28 is fixed on the inner surface of the turntable 30;

[0035] The plastic box can be molded by providing a molding part. After the molding, the plastic box falls into the placement groove 29 provided on the outer wall of the circumference of the turntable 30 by its own gravity after demolding. When the plastic box enters the placement groove 29, the rotary joint 27 is connected to the fan and other equipment, and the fan is used to generate wind force so that the plastic box passes through the rotary joint 27 and finally passes through the mesh 28 to cool the plastic box in the placement groove 29, thereby avoiding the problem of excessive residual temperature of the plastic box after demolding and accelerating the cooling of the plastic box. By setting the turntable 30 to be rotary, when the placement groove 29 with the plastic box is moved to the bottom, it is discharged through the discharge hole 21 under the action of its own gravity, completing the discharge of the plastic box, and also avoiding the plastic box falling directly from a high place, causing the plastic box to be deformed or damaged due to bumps.

[0036] The molding part includes a die assembly and a punch assembly, the die assembly includes a pipeline 6 and a die 14, the die 14 is fixed to the inner wall of one side of the support plate 11 by bolts, and the pipeline 6 is fixed to the outer wall of one side of the die 14, a guide rod 4 is fixed between the vertical plate 3 and the support plate 11 by bolts, and a limit plate 12 is welded to the circumferential outer wall of the guide rod 4, the punch assembly includes a movable plate 5 and a mounting seat 13, a T-shaped rod 15 is welded to the outer wall of one side of the movable plate 5, and the outer wall of the T-shaped rod 15 is slidably connected to the mounting seat 13, and a spring 16 is clamped between the outer wall of one side of the mounting seat 13 and the inner wall of one side of the T-shaped rod 15, a punch 17 is fixed to the inner wall of one side of the mounting seat 13, and a through hole matching the inner diameter of the punch 17 is opened on the surface of the movable plate 5;

[0037] When it is necessary to mold the plastic box, first drive the punch 17 to move toward the inside of the die 14. After the punch 17 and the die 14 are molded together, the molten plastic box processing material can be injected into the gap between the die 14 and the punch 17 by using the pipeline 6, thereby realizing the molding of the plastic box. When the plastic box needs to be demoulded after being molded and cooled, the movable plate 5 is moved in the opposite direction along the guide rod 4. When the movable plate 5 moves to fit the surface of the limiting plate 12, the limiting plate 12 limits the movable plate 5. When the mounting seat 13 is continued to be driven to move horizontally, the mounting seat 13 slides along the T-bar 15. During this process, the spring 16 is in a compressed state, and the punch 17 slides relative to the movable plate 5. During the sliding process of the punch 17, the plastic box is limited by the movable plate 5. Therefore, when the plastic box slides relative to the punch 17, the plastic box will detach from the punch 17, thereby realizing the demoulding of the plastic box.

[0038] The outer wall of one side of the vertical plate 3 is fixed with an electric telescopic rod 2 by bolts, and the output end of the electric telescopic rod 2 is fixed with a movable seat 10 by a pin, and the movable seat 10 and the outer wall of one side of the mounting seat 13 are fixed by bolts;

[0039] The electric telescopic rod 2 can drive the movable seat 10 to move horizontally, so that the movable seat 10 drives the mounting seat 13 to achieve mold closing between the male mold 17 and the female mold 14 during the horizontal movement.

[0040] The top outer wall of the base 1 is fixed with a vertical plate 24 by bolts, and the through hole opened on the surface of the vertical plate 24 is rotatably connected with the rotating column 8, and one end of the rotating column 8 is rotatably connected with a sleeve rod 22, and the sleeve rod 22 and the moving seat 10 are fixedly connected, and a driving arm 9 is welded to the inner wall of one side of the moving seat 10, and a driving head 20 is welded to the bottom of the driving arm 9, and a spiral groove 23 used in conjunction with the driving head 20 is opened on the circumferential outer wall of the rotating column 8;

[0041] A driving frame 32 is fixed to one end of the rotating column 8 away from the sleeve rod 22, and a sliding rod 18 is slidably connected to a through hole opened at the top of the driving frame 32, and a spring 19 is clamped between the top inner wall of the sliding rod 18 and the top outer wall of the driving frame 32, and a ratchet 25 is welded at the bottom of the sliding rod 18, and a ratchet 26 used in conjunction with the ratchet 25 is fixed to one end of the rotating disk 30;

[0042] By fixing the driving arm 9 and the moving seat 10, when the electric telescopic rod 2 drives the driving head 20 to move horizontally, the sleeve rod 22 slides relative to the rotating column 8. During the sliding process, the sleeve rod 22 uses the spiral groove 23 to guide the moving path of the driving head 20, so that the rotating column 8 can rotate along the sleeve rod 22. During the rotation process, the rotating column 8 drives the ratchet 25 to rotate along the circumferential direction of the ratchet wheel 26. The ratchet mechanism is used to make the ratchet wheel 26 and the turntable 30 rotate along the circumferential inner wall of the support ring 7 when the ratchet 25 rotates forward along the ratchet wheel 26, so that the turntable 30 drives the placement slot 29 to rotate during the rotation process. The rotation of the turntable 30 is ensured by the movement of the ratchet 25, thereby ensuring that the plastic box is finally discharged from the bottom of the discharge hole 21 after cooling. When the ratchet 25 rotates in the opposite direction, there is a certain damping between the turntable 30 and the support ring 7, and the ratchet 25 cannot overcome the damping to drive the ratchet 26 and the turntable 30 to rotate. This structure ensures that the turntable 30 can rotate intermittently, ensuring that when a plastic box is placed in one of the placement slots 29, the remaining empty placement slots 29 are rotated again to a position opposite to the feed hole 31, so that the plastic box is discharged periodically. At the same time, the intermittent rotation of the turntable 30 and the closing of the die 14 and the punch 17 are kept consistent and synchronized, and there is no need to use electrical control to reduce its failure rate.

[0043] When the present embodiment is in use, the electric telescopic rod 2 is first used to drive the movable seat 10 to move horizontally. The movable seat 10 drives the punch 17 to move toward the direction close to the die 14 during the horizontal movement. In the initial stage, the punch 17 protrudes from the surface of the mounting seat 13. When the punch 17 extends into the inside of the die 14 and the movable plate 5 and the die 14 are molded, the molten plastic box processing material is introduced into the cavity between the die 14 and the punch 17 by the pipeline 6 to complete the molding of the plastic box. A water channel for water cooling the plastic box is provided in the die 14. After the plastic box is cooled, demoulding of the plastic box begins. During the demoulding process, when the movable plate 5 moves to fit the surface of the limiting plate 12, the limiting plate 12 limits the movable plate 5. Then, when the movable seat 10 continues to drive the mounting seat 1 When the rotating plate 3 moves, the mounting seat 13 slides relative to the T-bar 15, so that the convex mold 17 slides along the moving plate 5 to demould the plastic box. After demoulding, the plastic box first falls into the feeding hole 31, and then falls into the placement groove 29. When the rotary joint 27 and the fan and other equipment are connected, the wind force generated by the fan is used to cool the plastic box that falls into the placement groove 29, so as to avoid the residual heat of the plastic box causing harm to the operator. At the same time, the plastic box can be conveyed in a rotary manner. When the cooled plastic box is conveyed to the bottom of the turntable 30, the plastic box is discharged through the discharge hole 21. In this way, the plastic box can be cooled while avoiding the plastic box from falling directly from a high place during the demoulding process. The wind force can be used to clean the plastic box to avoid dust after demoulding.

[0044] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A plastic box production molding device, comprising a base (1), characterized in that: A vertical plate (3) and a support plate (11) are fixed to the top of the base (1) by bolts, a molding part for molding the plastic box is installed between the vertical plate (3) and the support plate (11), a support ring (7) is fixed to the inner wall of one side of the support plate (11) by a bracket, and a feeding hole (31) and a discharge hole (21) are respectively provided at the top and bottom of the support ring (7), a rotary joint (27) is embedded and fixed in a through hole provided on the surface of the support plate (11), and a rotating disk (30) adapted to the inner diameter of the support ring (7) is movably connected to one end of the rotating disk (27), and a plurality of groups of placement grooves (29) are provided on the circumferential outer wall of the rotating disk (30), and a leakage net (28) is fixed to the inner surface of the rotating disk (30).

2. A plastic box production molding device according to claim 1, characterized in that: The molding part comprises a die assembly and a punch assembly, the die assembly comprises a pipeline (6) and a die (14), the die (14) is fixed to an inner wall of one side of a support plate (11) by bolts, and the pipeline (6) is fixed to an outer wall of one side of the die (14).

3. A plastic box production molding device according to claim 2, characterized in that: A guide rod (4) is fixed between the vertical plate (3) and the support plate (11) by means of bolts, and a limiting plate (12) is welded to the circumferential outer wall of the guide rod (4).

4. A plastic box production molding device according to claim 3, characterized in that: The male mold assembly comprises a movable plate (5) and a mounting seat (13); a T-shaped rod (15) is welded to an outer wall of one side of the movable plate (5); the outer wall of the T-shaped rod (15) is movably connected to the mounting seat (13); a spring (16) is clamped between the outer wall of one side of the mounting seat (13) and the inner wall of one side of the T-shaped rod (15); and a male mold (17) is fixed to the inner wall of one side of the mounting seat (13).

5. A plastic box production molding device according to claim 4, characterized in that: An electric telescopic rod (2) is fixed to the outer wall of one side of the vertical plate (3) by means of bolts, and a movable seat (10) is fixed to the output end of the electric telescopic rod (2) by means of a pin, and the movable seat (10) and the outer wall of one side of the mounting seat (13) are fixed by means of bolts.

6. A plastic box production molding device according to claim 5, characterized in that: The top outer wall of the base (1) is fixed with a vertical plate (24) by bolts, and a through hole provided on the surface of the vertical plate (24) is movably connected with a rotating column (8), and one end of the rotating column (8) is movably connected with a sleeve rod (22), and the sleeve rod (22) and the movable seat (10) are fixedly connected.

7. A plastic box production molding device according to claim 6, characterized in that: A driving arm (9) is welded to the inner wall of one side of the movable seat (10), a driving head (20) is welded to the bottom of the driving arm (9), and a spiral groove (23) used in conjunction with the driving head (20) is opened on the circumferential outer wall of the rotating column (8).

8. A plastic box production molding device according to claim 7, characterized in that: A driving frame (32) is fixed to one end of the rotating column (8) away from the sleeve rod (22), and a through hole opened at the top of the driving frame (32) is movably connected to a sliding rod (18), and a spring (19) is clamped between the top inner wall of the sliding rod (18) and the top outer wall of the driving frame (32).

9. A plastic box production molding device according to claim 8, characterized in that: A ratchet (25) is welded to the bottom of the sliding rod (18).

10. A plastic box production molding device according to claim 9, characterized in that: The surface of the movable plate (5) is provided with a through hole which matches the inner diameter of the punch (17).

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